Queens Gambit Declined Normal Defense Puzzle (Rated 1088): Fork — Decisive Material Gain

In this Queen's Gambit Declined middlegame, Black uses active piece placement to create a tactical refutation against White's loose coordination. The key idea is a fork: a single knight jump can attack multiple valuable targets at once, especially when the enemy queen and bishop are both exposed. These positions often arise when one side has more material but leaves pieces unprotected, allowing the defender to turn activity into a decisive gain.